128421909

素因数分解:

$3^3\times 7^1\times {\mathrm{11}}^1\times {\mathrm{223}}^1\times {\mathrm{277}}^1$

素因数の和:527

約数の個数: 64

約数和(自身を含む): 239124480

約数和(自身を除く): 110702571

約数列:

[1, 3, 7, 9, 11, 21, 27, 33, 63, 77, 99, 189, 223, 231, 277, 297, 669, 693, 831, 1561, 1939, 2007, 2079, 2453, 2493, 3047, 4683, 5817, 6021, 7359, 7479, 9141, 14049, 17171, 17451, 21329, 22077, 27423, 42147, 51513, 52353, 61771, 63987, 66231, 82269, 154539, 185313, 191961, 432397, 463617, 555939, 575883, 679481, 1297191, 1667817, 2038443, 3891573, 4756367, 6115329, 11674719, 14269101, 18345987, 42807303, 128421909]

約数ペア:

[(1, 128421909), (3, 42807303), (7, 18345987), (9, 14269101), (11, 11674719), (21, 6115329), (27, 4756367), (33, 3891573), (63, 2038443), (77, 1667817), (99, 1297191), (189, 679481), (223, 575883), (231, 555939), (277, 463617), (297, 432397), (669, 191961), (693, 185313), (831, 154539), (1561, 82269), (1939, 66231), (2007, 63987), (2079, 61771), (2453, 52353), (2493, 51513), (3047, 42147), (4683, 27423), (5817, 22077), (6021, 21329), (7359, 17451), (7479, 17171), (9141, 14049)]